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Derrick for Loading Hay, An Ice Factory, and more

Patents and Monopolies

Report of the Smithsonian Institution

Tin--How Sampled, Assayed and Smelted

Recent English Patents

Toggle Joints as Power

How to Set a Slide Valve

Fictitious Amethysts

What Came of it

The Law of Patents

Steam Jets in Fires Lengthening the Flame

Work and Power

The Sky Now

Special Notices

Patent Claims

Issued from the United States Patent-Office

Launch of the Dunderberg

Corbin's Bag Holder

Patent Agency Office

Recent American Patents


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  • Notes and Queries

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July 29, 1865

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